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Facebook shouldn't be so judgemental, why should people's decision to commit suicide not be honoured? How is "save a few lives" a good thing if those lives are lived by people who don't want to live those lives!

Oh dear/. moderation system is going to call the Samaritans on me now...

I like cheap knockoffs just like the next guy, if they effectively do the same thing as the "real thing". If they don't then it's more of a problem. (the stated case has nothing to do with alibaba I believe)

An enormous hole had been made by the impact of the projectile, and the sand and gravel had been flung violently in every direction over the heath, forming heaps visible a mile and a half away. The heather was on fire eastward, and a thin blue smoke rose against the dawn.
Link here (e.g.)

Mars' atmosphere is.. around 20 mBar..it's near-vacuum. And vacuum makes for a very good thermal insulator.

"For all practical purposes" is not correct. The thermal conductivity of a gas is near-independent of pressure down to very low pressures, until the mean free path of particles becomes large compared to the distance to the solid where the heat gets dumped.
20mBar and the MFP is still tiny. You need a pretty good vacuum (10^-4mbar or so) in a coffee flask otherwise it doesn't change a thing.

Excel checks formulas for "consistency" so if you have
b1 : = a1+1 , b2: =a2+1 , b3: =a42 + 1 , b4: =a4+1 ,
then the ropey B3 will be flagged up. Of course there are sometimes false positives and you switch this check off or ignore it, and who knows how many false negatives. The message "just say no to Excel" still stands.

the cameras a re supposed to have a 30 seconds buffer that always records, so you get the 30 seconds before you press "Start". That, and the fact that the battery is supposed to last a whole shift, makes them a very interesting device. Where can I buy one of those?

MancunianMaskMan (701642) writes ""Wireless Armour" is a croudfunding attempt for a new kind of pants that protects ones cojones from nasty radiation.
It's already at 25% of its funding goal which is an indication that the bounds of gullibility are wider than previously thought. Ther blurb reads: "Wireless Armour has the ambitious goal of protecting the health of the wireless generation..."
El reg has a short writeup."

Beta decay happens in certain nuclei, upping the atomic number while keeping the nucleon count constant. A proton flips into a neutron and the spare electric charge flies off with the electron, which has comparatively little mass.

Neutrons are emitted during fission events, a nucleus splits (roughly) in half with a few neutrons left over. These neutrons are generally "fast", i.e. high-energy, and the "fast" in fast breeder refers to the fact that these fast neutrons are used for breeding rather than slowed-down ("thermal") neutrons.